pfSense

/*

	This function was borrowed from a comment on PHP.net at the following URL:

	http://www.php.net/manual/en/function.array-merge-recursive.php#73843

 */

function array_merge_recursive_unique($array0, $array1)

{

    $arrays = func_get_args();

    $remains = $arrays;

    // We walk through each arrays and put value in the results (without

    // considering previous value).

    $result = array();

    // loop available array

    foreach($arrays as $array) {

        // The first remaining array is $array. We are processing it. So

        // we remove it from remaing arrays.

        array_shift($remains);

        // We don't care non array param, like array_merge since PHP 5.0.

        if(is_array($array)) {

            // Loop values

            foreach($array as $key => $value) {

                if(is_array($value)) {

                    // we gather all remaining arrays that have such key available

                    $args = array();

                    foreach($remains as $remain) {

                        if(array_key_exists($key, $remain)) {

                            array_push($args, $remain[$key]);

                        }

                    }

                    if(count($args) > 2) {

                        // put the recursion

                        $result[$key] = call_user_func_array(__FUNCTION__, $args);

                    } else {

                        foreach($value as $vkey => $vval) {

                            $result[$key][$vkey] = $vval;

                        }

                    }

                } else {

                    // simply put the value

                    $result[$key] = $value;

                }

            }

        }

    }

    return $result;

}